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Analog Devices Inc./Maxim Integrated MAX6383XR17D3-T
- Part No.:
- MAX6383XR17D3-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Supervisors
- Package:
- SC-70, SOT-323
- Datasheet:
-
MAX6383XR17D3-T.pdf
- Description:
- IC SUPERVISOR 1 CHANNEL SC70-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,765
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Product details
Overview
MAX6383XR17D3-T from Maxim Integrated is a low-power, open-drain active-low microprocessor supervisory circuit designed for reliable power-on reset and brownout detection in space-constrained systems. It features a factory-set 1.67V reset threshold (±2.5% over -40°C to +125°C), 140ms minimum reset timeout, 3μA supply current at +1.8V, and guaranteed valid reset output down to VCC = 1V. It is used in battery-powered instrumentation and embedded controllers requiring precise voltage monitoring.
For engineers reviewing the MAX6383XR17D3-T datasheet, MAX6383XR17D3-T pinout, MAX6383XR17D3-T application, or MAX6383XR17D3-T equivalent, key selection criteria include its open-drain active-low reset output, 1.67V threshold accuracy, 140ms timeout, SC70-3 package footprint, and compatibility with 1.0V–5.5V supply rails in low-power portable designs.
Technical Context
The MAX6383XR17D3-T implements a precision bandgap-based voltage comparator with ±2.5% threshold accuracy across -40°C to +125°C, paired with a temperature-stable internal timer that guarantees ≥140ms reset assertion after VCC recovery. Its open-drain RESET output requires an external pullup and remains functional down to VCC = 1V, enabling robust reset signaling during deep brownout conditions.
Unlike push-pull variants, this device lacks manual reset (MR) or auxiliary RESET IN inputs-its functionality is strictly dedicated to single-supply VCC monitoring. The 3-pin SC70 package integrates only VCC, GND, and RESET terminals, eliminating unused pins and minimizing PCB area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reset Threshold | 1.67V nominal (1.62V–1.71V range), factory-trimmed for stable brownout detection at low-voltage logic rails |
| Reset Timeout | 140ms minimum, ensures sufficient μP initialization time after power stabilization |
| Supply Current | 3μA at +1.8V, enables multi-year operation in coin-cell–powered devices |
| Operating Voltage | 1.0V to 5.5V, supports valid reset assertion even during severe undervoltage events |
| Output Type | Open-drain active-low RESET, allows wired-OR configuration and level translation with external pullup |
| Temp Range | -40°C to +125°C, qualified for industrial and automotive under-hood environments |
| Threshold Accuracy | ±2.5% over full temperature range, eliminates need for external calibration in production |
Pinout & Package
MAX6383XR17D3-T is housed in a 3-pin SC70 package (outline 21-0075, land pattern 90-0208), optimized for high-density PCB layouts. Pin 1 is RESET (open-drain active-low), Pin 2 is VCC, and Pin 3 is GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - RESET | Open-drain active-low reset output | Drives low when VCC < 1.67V; requires external pullup resistor for logic-high state; compatible with 1.8V/2.5V/3.3V I/O domains |
| 2 - VCC | Power supply input and monitored voltage rail | Supplies internal circuitry and serves as sole reset trigger source; accepts 1.0V–5.5V with guaranteed operation down to 1.0V |
| 3 - GND | Ground reference | Provides return path for internal bias and RESET sink current; must be low-impedance to ensure accurate threshold sensing |
Key Features
| Feature | Design Value |
|---|---|
| Factory-set 1.67V reset threshold | Eliminates external resistor divider, reducing BOM count and layout area in compact designs |
| 140ms minimum reset timeout | Guarantees adequate processor initialization window without requiring external timing components |
| 3μA supply current at +1.8V | Extends battery life in always-on sensor nodes and portable medical devices |
| Valid reset output down to VCC = 1V | Ensures deterministic system behavior during deep brownout, preventing runaway code execution |
| Open-drain active-low output | Enables shared reset bus across multiple ICs and supports mixed-voltage system-level reset coordination |
Applications
| Portable Medical Sensors | Battery-Powered IoT Nodes |
|---|---|
Use Scenario: Wearable ECG monitor powered by CR2032 coin cell, operating intermittently with ultra-low quiescent current requirements. IC Role / Device Role / Timing Role: Supervises main 1.8V supply rail and asserts open-drain RESET to microcontroller upon voltage sag below 1.67V. Use Value: 3μA ICC extends battery life beyond 3 years; 140ms timeout ensures reliable firmware boot before sensor sampling begins. | Use Scenario: LoRaWAN end-node deployed in remote agriculture, powered by primary lithium thionyl chloride battery. IC Role / Device Role / Timing Role: Monitors 3.3V system rail and holds MCU in reset during cold-start voltage ramp-up and seasonal temperature-induced droop. Use Value: ±2.5% threshold accuracy over -40°C to +125°C prevents false resets in uncontrolled outdoor environments. |
| Industrial PLC I/O Modules | Automotive Body Control Units |
Use Scenario: DIN-rail mounted programmable logic controller with isolated 24V-to-3.3V DC-DC converter powering digital I/O ASICs. IC Role / Device Role / Timing Role: Detects undervoltage on 3.3V logic rail and forces controlled shutdown via open-drain RESET line tied to multiple ASICs. Use Value: Open-drain architecture allows single RESET net to coordinate reset sequencing across 8+ downstream devices without contention. | Use Scenario: Under-dash body control module exposed to engine bay thermal cycling and load-dump transients. IC Role / Device Role / Timing Role: Provides AEC-Q100–compliant reset supervision for 1.8V microcontroller core supply in ASIL-B–relevant subsystems. Use Value: Guaranteed operation to +125°C and negative-going transient immunity prevent spurious resets during alternator load dumps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microprocessor reset applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX6326XR17D3-T | Same 1.67V threshold and 140ms timeout, but push-pull active-low output; no external pullup required | Suitable where board-level reset bus is dedicated (no wired-OR), and VCC ≥ 1.8V is guaranteed during reset deassertion | Select when simplifying BOM by eliminating pullup resistor and avoiding open-drain leakage concerns |
| TPS3123E17DBVR | 1.67V threshold, 200ms timeout, 1.5μA ICC at 1.8V, SOT-23-3 package | Lower quiescent current but longer timeout; not AEC-Q100 qualified; different pinout (RESET/VCC/GND vs. VCC/RESET/GND) | Select for ultra-low-power applications where 60ms longer timeout is acceptable and automotive qualification is unnecessary |
Compared with MAX6383XR17D3-T, MAX6326XR17D3-T removes the need for an external pullup but sacrifices wired-OR flexibility, while TPS3123E17DBVR offers lower ICC at the cost of timeout precision and automotive compliance-making MAX6383XR17D3-T optimal for space-constrained, AEC-Q100–aligned designs requiring open-drain coordination.
Availability
MAX6383XR17D3-T is available at Aetrix Electronics and suitable for portable medical sensors, battery-powered IoT nodes, industrial PLC I/O modules, and automotive body control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX6383XR17D3-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated, now part of Analog Devices, designs precision analog and mixed-signal ICs for industrial, automotive, communications, and computing markets, with emphasis on reliability, low power, and integration.
The MAX6381–MAX6390 family delivers single/dual low-voltage supervisory circuits targeting space- and power-constrained embedded systems needing accurate, low-quiescent reset functionality in miniature packages.
FAQ
What is the exact reset threshold voltage of the MAX6383XR17D3-T?
The MAX6383XR17D3-T has a factory-set nominal reset threshold of 1.67V, with a guaranteed range of 1.62V to 1.71V at +25°C and ±2.5% variation over -40°C to +125°C. This value is laser-trimmed during production and does not require external calibration. The "17" suffix in MAX6383XR17D3-T directly references this 1.67V threshold per Maxim's ordering nomenclature.
Does the MAX6383XR17D3-T support manual reset (MR) functionality?
No, the MAX6383XR17D3-T does not include a manual reset input. It is a dedicated single-supply VCC monitor with only three pins: RESET (open-drain), VCC, and GND. Manual reset capability is present only in MAX6384/MAX6385/MAX6386/MAX6390 variants, which use 4-pin SC70 or 6-pin μDFN packages. The MAX6383XR17D3-T's 3-pin SC70 footprint excludes MR by design.
What package type and pin configuration does the MAX6383XR17D3-T use?
The MAX6383XR17D3-T uses a 3-pin SC70 package (outline 21-0075) with top-view pinout: Pin 1 = RESET (open-drain active-low), Pin 2 = VCC, Pin 3 = GND. This matches the MAX6381/MAX6382/MAX6383 series and differs from 4-pin SC70 or 6-pin μDFN variants used by other members of the MAX6381–MAX6390 family.
Can the MAX6383XR17D3-T operate reliably below 1.8V?
Yes, the MAX6383XR17D3-T is fully specified to operate from VCC = 1.0V to 5.5V. Its reset output remains valid and correctly asserted/deasserted down to VCC = 1.0V, and supply current is characterized at 1.8V (3μA), 2.5V (4μA), and 3.6V (6μA). This makes it suitable for ultra-low-voltage applications such as energy-harvesting systems and deep-brownout recovery circuits.
Is the MAX6383XR17D3-T AEC-Q100 qualified?
Yes, the MAX6383XR17D3-T is AEC-Q100 qualified for automotive applications. Per Maxim's ordering information, versions with "/V" suffix (e.g., MAX6383XR17D3/V+T) denote automotive qualification. While the base part number MAX6383XR17D3-T carries the RoHS-compliant "+T" suffix and operates over -40°C to +125°C, full AEC-Q100 compliance requires the /V variant-confirm qualification status using the complete orderable part number and official Maxim documentation.
MAX6383XR17D3-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SC-70, SOT-323
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Simple Reset/Power-On Reset
- Number of Voltages Monitored:
- 1
- Voltage - Threshold:
- 1.67V
- Output:
- Open Drain or Open Collector
- Reset:
- Active Low
- Reset Timeout:
- 140ms Minimum
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SC-70-3
MAX6383XR17D3-T FAQ
1.How can I place an order for MAX6383XR17D3-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6383XR17D3-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX6383XR17D3-T reliable?
The price and inventory of MAX6383XR17D3-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6383XR17D3-T is usually 5 days.
3.What payment methods are accepted for MAX6383XR17D3-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6383XR17D3-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6383XR17D3-T?
MAX6383XR17D3-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6383XR17D3-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX6383XR17D3-T?
For technical support, including MAX6383XR17D3-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6383XR17D3-T requirements.
6.How does Aetrix verify that MAX6383XR17D3-T is sourced from the original manufacturer or authorized distributors?
All MAX6383XR17D3-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX6383XR17D3-T meets industry standards.
7.What is the process for return or replacement of MAX6383XR17D3-T?
All MAX6383XR17D3-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6383XR17D3-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX6383XR17D3-T part is unused and in its original packaging.
Return procedure for MAX6383XR17D3-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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